The growth environment of high-quality grapes

temperature

The lower air temperature required for grape growth is about 12 ℃ -15 ℃, the lower ground temperature is about 10 ℃ -13 ℃, the suitable temperature for flowering is about 20 ℃, and the suitable temperature for fruit expansion is 20 ℃ -30 ℃. If the temperature difference between day and night is large, the coloring and sugar content are better. After the grapes sprout in spring. If the temperature rises rapidly, it is easy to cause branches to grow excessively, manifested as insufficient node length and poor fertilization during flowering. If encountering spring cold, attention should be paid to applying more phosphorus fertilizer and high carbon organic matter, and nitrogen fertilizer should be minimized as much as possible.

Moisture

Grapes have high requirements for moisture, and strict control of soil moisture is a prerequisite for growing good grapes. Grapes require more water during their early growth or nutritional growth stages, while in their later growth or fruiting stages, their roots are weaker and require less water. It is important to avoid damaging the roots to avoid affecting their quality. Grapes should avoid rain and dew. In rainy years, it can lead to insufficient sunlight and limited photosynthesis. Excessive absorption of water can lead to elongated branches and high humidity, which can easily cause various diseases such as black pox and gray mold. Therefore, it is ideal to keep the branches between 40 and 70 centimeters during the flowering period; The irrigation amount during the fruiting period in areas prone to fruit cracking should also be controlled. In areas prone to water scarcity and drought, straw should be covered appropriately to maintain soil moisture and control the growth of grass.